Chiropractic adjustment table



Oct. 16, 1951 T, C, BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE Filed Jan. 13, 1947 4 Sheets-Sheet lj07l04 if a J3] /54 52 :ai ,-7`5 7] 10375 43 5'/ i 74 72 i 1]] ll 3 j!!4 .'Sf'1`tgtf: l' 11 f 100 42 i We M 105 59 JJ 154 15a 51 124 J y 15a 5f,y 54 12J 1571 5 IN VEN TOR. THU/VAS a 50c/a fr l BY ,.782 'A M 174 F' A155 ATTORNEY.v

Oct. 16, 1951 T. Q BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE Filed Jan. 15, 1947 4 Sheets-Sheet 2 1505gg; a 58 '251 /52 15J I J BY7/Z M ATTORNEY.

Oct. 16,` 1951 T, C, BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE F' led Jan. 13, 1947 4 Sheets--SheeI 5 3135 3243/12?. /7 32 Itz?l TiL Il ll lLl l 6 i3! X FZ5' 50 y INVENTbR.

7' HUM/1 S C EUC/(L E Y WW2 M ATTORNEY. v

T. C. BUCKLEY CHIROPRACTIC ADJUSTMENT TABLE oct. 16, 1951 l 4Sheets-Sheet 4 Filed Jan. l5, 1947 f MK R n WM u C,... 2 32./ E, MM y #Y7B M 4 i L/k .n im m 5 `7 7 www Patented Oct. 16, 1951 UNITED STATES'vPATENT OFFICE CHIROPRACTIC ADJUSTMENT TABLE Thomas C. Buckley, Wichita,Kans.

Application January 13, 1947, `Serial No. 721,810

1 Claim.

patient placed thereon may be placed in any desirable position to bestreceive the adjustment that is to be given.

A further object is to provide a table of the kind mentioned in which'the adjustments of the table are hydraulically operated.

A still further object is to provide a table of the kind mentioned vthatis light in weight, simple in construction, easy and not too expensiveto make and sell, one that is durable and long lived, very efcient inits work, and one that is neat `in appearance. These and other objectswill be more fully described as this description progresses.

'Now referring to the accompanying drawings in which similar numeralsvof reference desigi )nate the same parts throughout the `severalfigures of the drawings;

Fig. 1 is a side View of the table, the table being shown in its down orhorizontal position.

Fig. 1A is a side View of the post support -operating device of thetable.

Fig. 2 yis a side View of the table, the -table loeing show-n in .itsraised or vertical position for receiving a patient.

Fig. 2A is a sectional view through the base frame member of the tableand illustratingoneof the pedal controls for .the table hoistingcylinders.

Fig. 3 is a, bottom plan view of the table as shown in Fig. 1. Fig. 4 isan enlarged detail side view of a typical hydraulic cylinder several `ofwhich are employed in eiecting the several adjustments of the table. f

Fig. 5 isa detail side view of the lower end and cap of the cylindershown in Fig. 4, the view being taken along the line V-V in Fig. 4 andlookf ing in the direction of the arrows.

y Fig. 6 is a detail side view of an alternate mounting for the severalcylinders of the table. Fig. '7 is a cross sectional View through thecylinder shown in Fig. 6, and looking in the direction of the arrows. AFig. 8 is a side view of an electrically operated latch employed on oneof the cylinder heads by which the table top is actuated, either as awhole o'r in part. Y Fig.` 9 is a longitudinal sectional View of thebearing supporting the table top.

Fig. 10 is a'cro'ss sectional view of the bearing in lii'g4 A9,'tl1eView being, taken along the line X-X in Fig. 9 and looking the directionofthe arrows.

Fig. 11 is a top plan view of the .spring tension control .for the chestunit of the .table top.

Fig. 12 is a side View of the spring tension control for the chest unit.of .the table top .as shown in Fig. '11. j

Fig. 13 is afront View of .the manually operated valve unit for thecontrol of the several cylinders employed in adjusting the table, theView .being taken along ,the line XIIIXIIIV in Fig. .15 and looking inthe direction .of the arrows.

Fig. 14 is a rear view of the valve unit shown in Fig. 13.

Fig. l5 is an enlarged cross sectional view ofl viding the hydraulicpressure for operating the adjusting cylinders of the table.

Fig. 19 is a side view of the hip unit of the table top, the unit beingshown in its flat position.

Fig. 20 is a side view of the hip unit of the table top, the unit beingshown in its raised position.

Fig. 21 is a bottom plan view of the adjustable hip unit.

Fig. 22 is an enlarged detail sectional view of the hip unit anddetachable mounting therefor, the View being taken alongv the line XXII-XXII in Fig. 21 and looking in the direction of the arrows.

Fig. 23 is a detail sectional View through vthe hip unit, the view beingtaken along the line XXIII- XXIII in Fig. 21 and looking in thedirection of the arrows.

Fig. 24 is a detail bottom plan view of Vthe hip unit and mountingtherefor.

Fig. 25 is a side detail view of the head rest shown in its raisedposition.

Fig. 26 is an end view of the head rest, the head rest being shown inits lowered or flat position.

Fig. 27 is an end view of the head rest, the head rest being shown inits raised position.

Fig. 28 is a detail cross sectional view of a modied form of thecylinder caps in which solenoid electric coil operated valves areemployed to con- 3 trol the feed and discharge of the hydraulic liquidto and from the cylinders.

Fig. 29 is an enlarged detail sectional view illustrating more clearlythe solenoid operation of the valves mentioned in the description ofFig. 28.

Fig. 30 is a detail fragmentary and diagrammatical side view of thetable illustrating the hydraulic lines and electrical control of thevalves in the hydraulic lines.

Fig. 3l is an enlarged detail View of an adjustable frame lock employedin the table. the view being as seen from the line XXXI-XXXI in Fig. 3Aand looking in the direction of the arrows.

In the drawings the table is shown as having a tubular primary baseframe 3| that is substantially U-shaped, the closed end of the U beingat the head of the table. The base 3| is supported on suitable legelements 32 that are attached thereto.

Each leg portion of the U-shaped base element 3| is provided with anupwardly extending curved support element 33, the ends of which arepreferably welded to the leg portions of the U- shaped base 3|.

Cross brace elements 34 are positioned between the upper curved portionsof the supports 33. and their opposite leg of the U-shaped base 3|.

A T-iron or suitable cylinder support member 35 is positioned betweenand rigidly attached to the legs of the U -shaped base 3| at a pointjust in advance of the cross braces 34.

Short aligned bearing and opposed sleeves 36 are welded to the peak ofthe upper curved portion of the supports 33. The ends of a tubularelement 31 are journalled in the tubular sleeve elements 36.

The table tcp has a U-shaped secondary frame element 38, the closed endof the U also being at the head end of the table, and the legs of the Uare zig-zag vertically in shaped.

At a point toward the outer ends of the legs of the secondary frame 38the legs rest on the tubular journalled cross support element 31 and areattached, welded, thereto.

The head end of the legs of the zig-zag U- shaped secondary frame 38 areeach provided with a support leg 39 which is adapted to rest on the legsof the primary frame 3|, or if the primary frame 3| should be shortenedin the manufacture of the table, the support leg 39 may rest on the oor.

Cross support members 40, 4|, 42 and 43 are positioned between the legsof the U-shaped secondary frame substantially at the points of the bendin the Zig-zag formation of the secondary frame. vA longitudinallypositioned support member 44 is positioned midway between the legs ofthe secondary frame 38 and reaches from the cross member 31 to the crossmember 42 and the ends of the support 44 are welded to the cross members31 and 42.

The table is provided with a chest and a head rest support frame whichcomprises a pair of vertically positioned standard plates 45 and 46, thelower ends of which are provided with tubular formations 41 in which`the legs of the seccondary frame 38 are slidably received. The standards45 and 46 are spaced apart and cross members 48, 49, 50 and 5| arepositioned between the standards 45 and 46 and the ends of the crossmembers 48, 49, l] and 5| are Welded to their respective standard 45 or46. The cross members 48, 49, 50 and 5| are spaced apart in horizontalparallelism with each other and lay in a plane passing through thevertical center axis of the standards 45 and 46 and are for purposesthat will later be made obvious.

The ends of a curved tubular element 48a are Welded to the cross framemember 43 and the curved portion of the element 48a extends toward thehead end of the table and serves as a hand rest for the patient.

The table is provided with a U-shaped abdominal rest support frame 52,the ends of the legs, or head end of the frame 52 is pivotally mountedon the cross support member 5| and a cross member 52a. is rigidlypositioned between the legs of the U and in the central positionthereof. The frame 52 is provided With a plate 5217` that extendsbetween the cross member 52a and the closed end of the U and ispositioned midway between the legs of the U. The plate 521) is providedwith a centrally positioned slot 52e that is longitudinally positionedin the plate 52h, and an abdominal support cushion 53 is rigidly mountedon the foot end of the frame 52. The table is provided with arectangular chest rest support frame 54, the head end of which ispivotally mounted on the cross member 5|, and a chest support cushion 55is rigidly mounted on the frame 54. 'The chest support frame 54 isprovided with a plate tongue element 56, one end of which is welded tothe central portion of the foot end of the chest support frame 54 andextends downwardly and thence rearwardly toward the foot end of thetable to a point just below the foot end of the abdominal cushionsupport frame 52 and is positioned at a slightly downwardly degree ofangle thereof. The tongue plate 56 is provided with a centrallypositioned longitudinal slot 5l' that is in registry with the slot 52ein the plate 52h.

'I'he table is also provided with a rectangular shaped head rest supportframe 58, theV foot end of which is pivotally mounted on the crossmember 5|.

The head rest consists of two cushions 59 and 60 that are positionedlengthways of the table with their adjacent edges being positioned alongthe center longitudinal axis of the table. The cushions 59 and 6!) arecarried on rectangular support frames 6| 'and 62, the adjacent cornersof which are pivotally mounted on the head rest support frame 58. Theadjacent corners of the head rest frames 6| and 62 are provided withmeshing gear segmentsY 63 and 64 that are rigidly mounted on the frames6| and 62, whereby the outer edge of one of the head rest frames 5| or62 may be raised and the opposite outside edge of its companion framewill likewise be raised or ,tilted as illustrated in Fig. 27.

The head rest support frame 58 is provided with a gear segment 65 thatis rigidly attached thereto with its center axis being substantially thesame as that of the gear segment 63. The under side of the head restportion 59 is provided with a latch bolt element 66 that is slidablycarried in bracket mountings 61 and 68, and a spring 69 is compressedbetween the bracket 61 and the latch bar 66 to urge engagement of theinner end of the latch bar between the teeth of the gear segment 65 tohold the head rest sections 59 and 69 in an adjusted flat or opposinglytilted positions as shown. The outer end of the latch bar' is providedwith a nger hold 1|) by which the latch bar 66 may be pulled fromengagement with the gear segment 65 so that the head Arest portions 159and 60 may Ibe rocked to selected adjusted positions.

, jThe-tableis also provided `with arectangular shaped leg `supportfr-ame 1|, the `foot vend of which is pivotally mounted onslidevelem-ents i12 and u13 that `are slidably mounted on ytheirame legs 38.Aleg support cushion 1"4 is rigidly attached to the lf-oot end ofthe legsupport frame 1|. The table is also provided with a-hi-p support cushion15 that is positioned at the head end of the leg support cushion and isattached -theretolby a combination hinge and-demountable 'devicetherefor vwhich-comprises a pair of curved leg elements 16 and 11 oneend of which isi-provided with hinge elements 18 and'19 which areattached to the head end oi the leg support frame `element 1I. The otherend of the legs 16 and 11 are provided with ball'formations 80 and 8|.The head end of thelegs 16 and 11 are provided with brackets 8i and 83that-are rigidly attached to the legs 16 and T11. The table isprovidedwith a synchronizing cross bar 84on the ends of which is formeddepending legs 85 and 86, each of which are provided with ratchet teeth181. The upper ends-of the legs'85 and-8b` are pivotally mounted at 88on the brackets 'i12-and 83. A spring 89 is positioned around the pivotpoint 88 and engages the legs 85 and 88 and 'the brackets 82 and 8,3 areso ltensioned as to urge movement of the legs 85 and 89 in a forwarddirection so as to cause the teeth 81 to engage and rest on the edge ofthe frame 1I to support the hip cushion in elevated or tilted adjustedpositions.

The hip support cushion 15 is provided with sliding movement of theslide 90,-will slide under .1

orfrom under the ball 80 or 8| tohold or release the ball 80 or 8| fromthe cushion 15. A spring 92 is positioned back of each slide 80 and istensioned to urge outward movement of the slides 90 to move and retainthe partial ball socket V9| under the balls 80 and 8|. The slides 90 areprovided with outwardly directed push rods 9,3, the outer ends of whichproject from the cushion 15. The inner .ends of the push vrods v03 are`U-.sh'aped vand straddle the ball 80 or `8| and engage the sides of theslide 90 to actuatelthe sliding motion of the slide `Sill. The cushion15 Ais ralso provided with a leaf spring94 that overlies the slide 90and balls 80 or 8| and one end thereof is adapted to spring downwardlyin front of `the topedge ofthe ball seat 9| to hold 'the slide v9i! in aretracted position when the ball is removed therefrom.

The table is provided with a foot support plat- 'orm 95 that is rigidlyattached to and supported Vby a pair of strap iron mountings 96 and 91which run along the outer side edges ofthe platform 95. The foot orouter ends oi the strap iron supports are provided with downward.directed end portions 96a and 91a. which rest on the foot end crossmember 43 of the table 'frame 38. The inner ends of the foot supportstrap members 96 and'91 are bent downwardly as in dicated at 98 and areseated in vslots 99 in the `ends of a tubular element |00 which ispositioned between the legs of the frame 38 and .is eccentricallymounted on a rod IOI thatpa'sses through the tube |00 and is'weldedtothe'tube 4at a 'point diametrically across `the 'tube from the slots as.-Tne ends of "the rod lol project beyond #the 'ends vof tube |00 andere`journailed inthe legs ofthe frame 38.

Theend 'of the lower leg of the Z-sha'ped -e'lement v"|02 is welded `tothe tubular element I0`0-. The .upper legof the Z--shaped element iscurved and fbiiurca'i'led 'and the bifurcations straddle Va piston rod|03 and are-seated in a 'groove in the piston rod |03 so that astherpistonrod |03 moves it will lrock the Z-shaped element and tube |00an move the foot platform to the 'dotted po'sition'shown in Fig. 1-A.

The'table is provided with a helical spring 95a, one end-of which isattached to 'the -cross member 4310i the "frame 38and the other end ofthe spring 95azis attached to the foot platform T95. The spring95a'serves to urge movement :of the foot 4platform lin the direction vofthe arrow IA as will later be described.

Rigidly mounted on the upper end of the piston rod |03 is asupplementary leg support cushion |04. The lower end of the-pistonfrod|03 is connected to a piston that is movable in a cylinder |05whic`h visrigidly mounted on the cross frame member 42 of the frame work 38.

Rigidly attached to the bottom and at opposite sides of the cushion v|04is one end of a pair of downwardly projecting -guide rods I05a and|8517. The rods |0511y and |051) slidably -pass through holes in thecross frame member 42, andthe bottom ends of the rods |05a and |051)have la head thereon to prevent the rods |05a and :|0511 from slippingentirely from the cross frame member 42. The rods |95a. and |051)` areprovided with compression springs |050 and |0'5d that arepositionedaround the rods |050, and |0512 and are under compression `between theheads of Athe rods I05a and I05b and the cross frame member 42. Thesprings I5c and |5d serve to retract the piston and piston rod |03 inthe cylinder |05 as will later be described.

The 'table is provided with a second cylinder |06 that is horizontallypositioned and one end ofthe cylinder |06 is pivotally mounted at |01lbe adjustably moved lengthway of the frame 38.

The other end of the cylinder |08 is provided with a cap element |09that is rigidly mounted thereon and through which the piston "rod |08 isslidably operable. The cap |09 is provided with an F-.shaped `bracket||0 that is rigidly attached thereto.

'The table isalso provided with a pair of helical springs |96a andIllib` that are positioned, one oneither side of the table and theircorrespond'- ing ends are attached, vone to the cross frame member 42and the other ends are connected to the rectangular frame 1| rand are sotensioned -as to move the frame 1I Ytoward the foot of the machine.

The table is provided with a third cylinder III,'the lower end of whichis pivotallymounted at I'|2 on 'the cross frame member 35. The cylinderIII is provided with a long tube-like `piston I I3, the lower end ofwhich is closed and the upper end of which receives the central leg'ofthe "F-'shaped bracket 'I I0, and a pivotal pin A| I4 #passesthrough' the adjacent or associated ends ofthe piston I I3 andthecentral legyof The end leg of the F-shaped, bracket ||0 is provided witha latch bar I I that slidably passes therethrough and the latch bar ||5in reality is the core of a solenoid electric coil IIS which is rigidlymounted on the cross frame 4| of the table. The solenoid coil IIB servesto operate the latch bar ||5 to engage it with the end leg of theF-shaped bracket ||0.

The solenoid coil ||6 has two electric' lead wires B5 which is the sameas, or connects to the Wire B5 in Fig. 2A, the other YWire |||iav of thesolenoid coil ||6 is one of the feed Wires for the coil I I6, the wireB4, of Fig. 2A, is the other feed Wire for the coil I I6. The rear ofthe solenoidcoil I I5 is provided with a spring ||1 which also engagesthe rear end of the core or latch bar ||5 and is so tensioned as tonormally retract or hold the latch bar I I5 from engagement With the endleg of the F-shaped bracket |||l.

The table is also provided with a fourth cylinder ||8 that is normallyhorizontally positioned and one end oi the cylinder I I8 is rigidlyattached to the cross frame member 40. The cylinder is provided with apiston and piston rod ||9, the outer end of which is rigidly attached tothe frame member 4B of the slide frame 45-45-48.

A pair of helical springs ||8a and ||8b are positioned, one on eitherside of thetable with their corresponding ends connected to the crossmember 40 and the other corresponding ends being connected to theslidable cross member 48 so as to move the frames 45 and 43 in adirection toward the foot of the table.

The table is also provided with a fth cylinder |20, one end of which ispivotally mounted at |2| on the cross frame 49 of the table. Thecylinder is provided with a piston and piston rod |22, the outer end ofwhich is pivotally attached at |23 to a slide element |24 that isslidably attached to the plates 56 and 52h and is operable in the slots51 and 52e in the plates 56 and 52h.

The table is provided with a lock for stationing the slide |24. The lockconsists of a plate |24a having a slot |2417 that is longitudinallypositioned therein, and a bolt |24c is passed through the slot |24b andthreaded into the guide plate 52h so that the plate |2411 may slideAcross ways of and on the guide plate 52h in or out of the path of travelof the slide |24 to obstruct or admit passage of the slide |24 along theslot |241). Rigidly attached to the slide plate |24a is a rod |24d, theouter end of which slidably passes through the frame element 52, and an-L-shaped hand hold |24f is formed on the outer end of the rod |24d foroperating the slide plate |24a.

The cylinder |20 is provided with a U-shaped rack element |25. One legof the U |25 is rigidly 4attached to the outer end of the piston rod|22, `and the other leg of the U |25 is provided with 8 above described.Another spring |3| is attached, one end to the rounded end of the U |28and the other end of the spring |3| is attached to the cross member 5|of the slide frame 45-46-1-5I and serves to urge a swinging movement ofthe cylinder |20 toward the head end of the table.

The table is provided with a sixth cylinder |32, the lower end of whichis pivotally mounted at |33 on the cross member 50 of the slide frame45-46-50. The cylinder 32 is provided with a piston and piston rod |34,the outer end of which is pivotally connected at the point |35 on thehead end cross member of the head support frame 58.

The cylinder |32 and piston rod |34 are provided With a U-shaped guideelement |34a, one leg of the U being rigidly attached to the outer endof the piston rod |34, and the other end of the U is provided with ahole in which the cylinder |32 is slidably mounted. One end of ahelicalspring |33a is attached to the lower end of the U-shaped guide |34a andthe other end of the spring |33a is attached to cross support member 50,and acts to retract the piston rod |34 Y when the hydraulic pressure isreleased from the cylinder |32.

The table is provided with two multiple valve blocks |35 and |31. Thevalve block |36 is rigidly mounted on the head end of the frame member3B, and the valve block |31 is rigidly mounted onthe foot end of theframe member 3|. Each valve block |36 and |31 is provided with apressure feed passage |38 and a return passage |39. The valve block |36has four pressure outlet valves |40, mi, |42 and |43, and four returnvalves |44, |45, M6 and |41. The valves men;- tioned are preferablyneedle valve type of valves such as illustrated in Fig. l5. Thedischarge and return passages |48 and |49 of the valves |40 and |44leads to one end of a tube |50, the other end of which connects With andopens into the cylinder |32. Similarly, one end of a tube |5| joins thedischarge and return passages of the valves |4| and |45 and the tube |5|leads to and opens into the cylinder |20. One end of another tube |52connects with the discharge and intake passages of the valves |42 and|45, and the tube |52 leads to and opens into the `cylinder l. Also oneend of a tube |53 joins with the discharge and intake passages of thevalves |43 and |41,

and the tube |53 leads to and opens into the cylinder |05.

The valve block |31 contains three sets of dis'- charge and returnvalves that are constructed and connected together the same asillustrated in Fig. 15. In the valve block |31 the pressure disa hole inwhich the cylinder |20 is slidably positioned. The central and outsideportion of the U |25 is provided with outwardly directed ratchet teeth|26. A spring |21 is connected, one end to the lower leg of the U |25and the other end to the cross slide framevmember 45 and serves toretract the piston rod |22 into the cylinder |20.

A U-shaped element |28 straddles the cylinder |20 and the rack |25, anda ratchet plate |29 is rigidly mounted between the outer ends of the U|28 and is adapted to engage therack teeth 'l5 tric circuit ofthewiresnB4` andBS.

charge valves are numbered |54, |55 and |56, and the return valves arenumbered |51, v|58 and |59.

Each valve |40, |4|, |42, |43, |44, |45, |46, |41, |54, |55, |55, |58,and |59 is provided with an operating foot pedal |40a, I4Ia, |42a, |43a,IMQ, |45a, |4611, |4101., |54a, |5511, |55a, |51a |58a an '|59arespectively.

In Fig. 2A is shown the valve pedal rocker arm |55a that is pivotallymounted at |14 in a bracket |15 that is rigidly attached to the framemember 3|. A push button electric switch B is rigidly attached to andsupported by the frame mem'- ber 3| in such a manner that in the rockingmotion of the foot lever |55a, the lever |5511 will engage and press thepush button BI upwardly to such a point that the contact point B2 willcontact the contact point B3 to close the elec,-

One end of a tube |60 joins withthedischarge and intake passages of thevalves |54 andv |51", and the tube |60 leads to and opens into thecylinder 8. One end of another tube l'l'jbins with the pressuredischarge and. return passages of the valves |55 and |58, and the tube|6| leads to and joins with the tube |52 which isa line between thevalves |42 and |46 and the cylinder One end of another pipe line |62joins with the pressure discharge and return passages of the valves |56and. |59., and the pipe line |52 leads to and opens into the cylinder|06.

Each pressure discharge Valve |40, |4`| |42, |43, |54, |55 and |56 isprovidedwith a rocker arm such as shown at, |63. in Fig. 15. Each rockerarm |63 is pivotally mounted atv |64` on a rocker arm support rod |65.The upper end of the rocker arm |63.v is pivotally connected. at

|66 to the outer end of a link |61, the other end" of which is pivotallyconnected at. |68'to a needle stem |69 which slidably passes through apacking gland and across the liquid pressure passage |38 to seat in avalve seat |1| between the passages |38 and |48. The bottom end of therocker arm |63 is curved rearwardly to substantially a horizontalposition, and the end thereof rests on the upper end of a standard |12which is an integral part of a foot pedal lever |13 that is pivotallymounted at |14 on a mounting that is rigidly attached to the frameelement 3| of the table.

Each foot pedal lever |13 is provided with a foot pedal |82 that has avertical shaft |83 that is integrally formed thereon and slidably passesthrough a hole in the foot pedal lever |13 and a set screw |84 isthreaded into the end of the foot pedal lever |13 to engage the footpedal shaft |83 to bind and hold. the foot pedal in adjusted positionsabove the floor on which the table rests.

Similarly each return valve |44, |45, |46, |41., |51, |58 and |59 isprovided with a rocker arm |16 that is pivotally mounted at |11 on arocker arm support element |18 that is rigidly mounted on its respectivevalve block |36 or |31. The upper end ofthe rocker arm 16 rests adjacentthe outer end of a needle valve stem |19,

which is slidably carried in a packing gland |80', and extends acrossthe return passage |139 and seats in a valve seat I 8| that ispositioned between the return passages |39 and |49.

Hydraulic pressure and a liquid reserve tank is employed for operatingthe cylinder of the table. This tank and pump may be separate from thetable and may serve several such tables, either separately orsimultaneously. The pump and tank will be as indicated in the diagramshown in Fig. 18 in which the pump is represented as being a gear pump|85 having a discharge pipe |86 that connects with the pipe line |38which leads to and connects with all the pressure valves of the table orseveral tables.. At |39 is shown a return line which connects with allthe return valves of the table or several tables and connects with ordischarges into a reserve and return tank |81. A pipe |88 connectsbetween the tank |81 and the feed or intake of the pump |85. Connectingbetween the pipes |86. and |88 is a. pipe line |89 in which is anadjustable spring loaded check valve |98. The adjustment of the springpressure on the check valve |90 may be employed to adjust the amount ofhydraulic pressure maintained in the pressure side of the hydraulicsystem for the operation of the table or tables.

shown in Fig. Zand/thepatient is standing on the 7;).vx pedal |56a maybe pressed downwardly, where- All the, cylinders. employed in the tableare hydraulic operated cylinders and two types of mountings for thecylinder are employed, one type is a pivotal mounting as illustrated inFig-' ures 4 and 5, andr the other is a rigid type ofi mountingillustrated. in Figures 6` and 7. In Figures 4 and 5 is. shown thecylinder D which corresponds with the cylinders |32, |20., |06.and

200 and 20| which, fit between a second pair of ear-like elements 202and 203 that are welded to the supporting frame element such as E, andtwo bolt'sare employed, one passing through each of the ears 250 and202" and the other through the ear-like elements 20| and 203 to formthev pivotalf mountingv forl the cylinder D. The head |99 is providedwith a tube coupling 204 to receive av tube or pipe, not shown inFigures 4 and' 5, for the hydraulicv feed' and return. F" representsthe. piston rod for the cylinder.

In4 Figures 6v and 7 the cylinder D corresponds` with the cylinders H8and' |05, and is shown as having a head` [99a having the tube or pipecoupling 204Y to receive the feed and return hydraulic line the same asdescribed for Figuresvr The cylinder D is provided with aV 4 and 5.sleeve 205 that is pressed thereon to make, it

rigid. with the cylinder D', and bolts 206 and.

201 are passed through the supporting elements, not shown, of the tableand through the sleeve 205 and theA ends ofthe bolts'rest in ind'enturesin the cylinder D to forma rigidmounting there.- for.

The. operation ofjthe table` is as follows. The

vfoot pedal |5511 is pressed downwardly and inV this action the electricswitch B rst closesthe i switch B to energize the solenoid coil ||6 and"move the latch bar ||5 into locking engagement.

The table havin-g beenV thus inclined; the patient may stand' on theplatform 95 andthen` lean back against. the cushions of thetablewhereupon* thefoot pedal. |58a'may be pressed, whereupon' thereturn valve |58 will be opened and the weight of the patient and tabletop will rock the table top to a horizontal position, whereby the pistonand piston rod H3" will be moved into the`A cylinder forcingjthe liquidin the cylinderA Ill out through the pipe |.6 through the return valve I5S and through the return line |39 into theV reservoir |81 for futureuse.

While the tablev i's in its raised position as' platform 95, the foot.pedal |54a is pushed downwardly, whereupon the pressure valve |54willbe; opened andhydraulic pressure will flow throughV Y f, the pipe|60" into the cylinder |18, whereupon the piston rod H9' of' thecylinder H8' will` be' extendedand move the framesY and 46, and theVcushions thereon toward the head end of the table and to the desiredplace to t the' patient;

whereupon the foot pedal |540, maybe releasedand the valve |'54 isclosed', whereby the frames 45 and 4.6 are l'ockedand' held in theiradjusted:`

position.

The above adjustment having been: made, the

These cylinders have a head |99 on whichL is. integrally for-med a pairof.' ear-like elements' 1l upon the valve |56 will be opened andhydraulic pressure is therefore admitted into the tube |62 and thecylinder |06, whereupon the piston |08 is projected and moves the frame1| and cushions thereon toward the head end of the table, and when theframe 1| and cushions thereon have come to the desired position the footpedal- |560. may be released and the frame 1| and cushions thereon arelocked in their adjusted positions.

The above adjustments having been made, the foot pedal |4313'l may bepressed downwardly whereupon the valve |43 will be opened and hydraulicpressure will be admitted into the tube |53 and cylinder |05, whereuponthe piston rod |03 will be projected to raise the cushion |04 to thedesired height, whereupon the pedal |54c may be released and the cushion|04 will be locked in its adjusted elevated position. Simultaneouslywith the adjusting action just described, the piston rod |03 will raisethe curved end of the Z-shaped element |02 to rock the Z- shaped element|02 and the tubular cam element to move the foot platform 95 upwardlyand forwardly, whereupon the sloping elements 93a and 91a will slide onthe cross frame member 43 to move the platform 95 from the feet of thepatient.

The above adjustments having been made, the foot pedal |42@ may bepressed downwardly, whereupon the valve |42 will be opened and thereforehydraulic pressure will be admitted into the tube |52 and cylinder l l,whereupon the piston rod ||3 will be projected and will tip the head endof the frame 1| and cushions thereon upwardly to the desired position,whereupon the pedal |42a may be released and the frame 1| will be lockedin its desired position.

The above adjustments having been made, the foot pedal |4|a may bepressed downwardly, whereupon the valve 4| will be opened and will admithydraulic pressure into the tube |5| and the cylinder |20, whereupon thepiston rod |22 will be extended and will tip the foot end of the frames54 and 52 upwardly to a desired position, whereupon the foot pedal |4|a1may be released and the valve |4| will close and the frames 54 and 52will be locked in their adjusted position.

The above adjustments having been made, the head cushion support frame58 may be tiltably adjusted either up or down as desired in view of thefact the piston rod |34 is partially extended in its normal position. Inview of this the foot pedal |40a may be pressed downwardly, whereuponthe valve |40 will be opened and hydraulic pressure will be admittedinto the tube |50 and cylinder |32, whereupon the piston rod |34 will beextended and will tip the head end of the head cushion support frame 58upwardly to any desired height, whereupon the foot pedal |40a, may bereleased and the head cushion support frame 58 will be locked in itsadjusted position; or, if desired, the foot pedal |44a may be presseddownwardly whereupon the return valve |44 will be opened and the springs133e will pull the piston rod |34 into the cylinder |32 to drop theouter or head end of the frame 58 to any desired position, whereupon thefoot pedal |44a may be released and the frame 58 will be locked in itslowered position.

The above adjustments having been made, the adjustment of the headcushions may now be made. This is done by rst pulling the latch 66 fromengagement with the gear segment 65 whereupon the outside edges of thehead support cushions may be rocked upwardly or downwardly to form anydegree of a v-shaped head rest as indicated in Fig. 27. The movements ofthe cushions 59 and 60 will always be equal due to the synchronizationof the cushion movements by the meshing gear segments 63 and 04. Thecushions 59 and 30 having been adjusted to the desired position, thelatch 56 may be dropped into engagement with the gear segment 65 and thehead support cushions are then locked in their adjusted position.

The hip support cushion 15 may be further adjusted in an upward rockingaction by lifting upwardly on the head end of the hip support cushion15y whereupon the cushion 15 will rock upwardly about the center axis ofthe hinges 18 and 19 and in this action the ratchet teeth 81 willratchet across the edge of the cross frame member 1| and hold thecushion 15 in any elevated position.

There are occasions when it is desirable to remove one or the other sideof the hip support cushion 15 from its mounting or supporting element 30or 8| and turn one end or the other of the cushion 15 diagonally acrossthe table and rest on the leg support cushion 14. This may be done bypressing the selected shaft button 93 inwardly, whereupon the ball seatslide 90 moves inwardly and from under its respective ball or 8|,whereupon the adjacent side of the cushion 15 may be raised anddisengaged from the ball 80 or 8| and swung over and rested on the legsupport cushion 14. As this side of the hip support cushion 15 is raisedand the ball 80 or 8| is thereby removed from the hip support cushion15, the free end of the spring 94 will spring downwardly in front of theupper edge of the ball seat 9| and hold the ball seat slide S0 in itsretracted position against the pressure of the helical spring 92. Now asthe hip support cushion is swung back to its original position andremounted on the ball 80 or 8|, the ball enters the hip support cushion15 and as the cushion 15 is moved downwardly the ball 80 cr 8| engagesthe leaf spring 94 and raises it, whereupon the leaf spring 94disengages the ball seat slide and the helical spring 92 moves the ballseat slide 90 outwardly so that the ball seat 9| is under the ball S0 or8| and the cushion 15 is again mounted on the balls 50 and 8|.

In giving a patient treatments while on the table there are times whenit is desirable that the chest and abdominal supported cushions 53 and55 will be yieldably supported and the foot end of the cushions 53 and55 will give or swing downwardly under a downward pressure on thepatient. The action just mentioned may be accomplished by pulling therod |24d and latch |24a outwardly whereupon the latch |24a is moved fromin front of the piston slide |24 and the slide |24 under downwardpressure exerted on the cushions 53 and 55 will slide footwardly inopposition to the tension of the helical spring |3| that supports thecylinder |20 in an inclined position. The effective tension of thespring |3| on the slide |24 may be increased or decreased by moving theyoke and latch |28|29 up and down the U |25 to engage the ratchet teeth|26 at adjusted distances from the pivotal mounting |2| of the cylinder|20.

The foregoing table adjustments were such that a patient lying on thetable is in a desired position to receive his treatment. After thetreatment is nished the foot pedal |450. may be pressed downwardly,whereupon the return valve |45 is opened, whereupon the springs |21 willretract the piston rod |22 and move the cushions 53 and 55 totheiroriginal or horizontal position. In this action theY liquidin thecylinder |20 will be forced therefrom through the tube |5I, return valve|45 and back to the reservoir tank itl.

Now the pedal Ia may be pressed downwardly, whereupon the return valve|46. will be opened and the weight of the cushions 14 and 15 and theframe 1| will press the piston rod ||3 into the cylinder III, whereuponthe, liquid in the cylinder I |A will be forced therefrom through thetube |52, return valve |46 and thence to the reservoir |231. Vifhen thecushions 14' and 15 have returned to their original or desired positionthe return valve pedal |490' may be released and the cushions 14 and 15and their frame 1| will be locked in their lowered or adjusted position.

Now the return valve pedal |410, may be pressed downwardly, whereuponthe return valve |41 will be opened and the springs |050 and |05d willpull the foot support cushion |04 downwardly and move the piston rod |83into the cylinder |05, whereupon the liquid in the cylinder |35 will beforced therefrom through the tube |53 and return valve |61 and into thereservoir |81. When the cushion |04 has dropped to the desired position,the foot pedal |41a may be released and the foot support cushion |84will be locked in its adjusted position.

Simultaneously with the action just described the cushion I 54 willengage the upper curved leg of the Z-shaped element |02 and rock itdownwardly to partially turn the tubular cam and therefore draw theplatform 95 downwardly, whereupon the inclined elements 95a and 91a willslide on the cross frame member 43 and this action takes place, themovement of the cam H30 will move the platform 95 against the patientsfeet.

Now the pressure valve foot pedal |55a may be pressed downwardly, and inthe fore part of this action the electric switch B will be closed,whereupon the electric solenoid coil I |55 will be energized and movethe core or latch bar 5 into engagement with the F-shaped member |59,and as the foot pedal |55a advances in its downward movement, thepressure valve |55 is opened and hydraulic pressure will be admittedthrough the tube I9! and into the cylinder whereupon the piston rod I|3will be extended therefrom and will rock the Zig-zag lJ-shaped frame 30to its raised position as shown in Fig. 2. When the frame 38 has beenraised to its desired position, the foot pedal I55a may be released` andthe pressure valve |55 will close and the frame 3&3 will then be lockedin its raised position.

Now the return valve pedal |59a may be pressed downwardly, whereupon thereturn valve 59 will be opened, and the springs I 06a and |06b will movethe cushion frame 1| downwardly and therefore move the piston rod |08into the cylinder |36, whereupon the liquid in the cylinder |06 will beforced therefrom through the tube |62 and return valve |59 and thence tothe reservoir |81. When the cushion frame 1| has moved downwardly to thedesired position, the foot pedal |59a may be released, whereupon thereturn valve |59 will be closed and the cushion frame 1| will be lockedin its adjusted position.

Now the return valve foot pedal |51a may be pressed downwardly,whereupon the return valve |151 will be opened and the springs ||8a and'||f8b will pull the slidable support frame I5- I6---ll8- in a 4forwarddirection whereupon the piston rod" |9 will be pressed into the cylinder||B whereupon the liquid inthe cylinder I I8 will be forced there-` fromthrough the` tube |60 and return valve |151 and thence to the reservoir|81. When the frame 45-6-48 has moved to the desired position thev footpedal I51a may be released, whereupon the return valve |51 will closeand the frame 05-46-43 will be locked in its newly adjusted position.The tableY is now ready for reuse and to vbe readjusted as abovedescribed.

vIn Figures r28, 29 and 30 is shown a modiiied form of valve controlwhich is the same for all the cylinders of the table. This form ofcontrol isfelectrical and the valves are operated byv sole noid coils,each of. which is controlled by pref-n erably an electric push button.In Figures 28 and 29, C represents any one of the cylinders |05, |06,III, ||8, |20 or |32, each of which have a head 9| in which is formed apressure hydraulic passage |92 and a return passage |93, and thehydraulic pressure line |38 opens into the pressure passage |92 andconnects with the pressure discharge |86; also the return line |39 opensinto the return passage |93 and connects with the reservoir |81. Ifdesired, the U-shaped tubular frame members 38 and 3| may be sealed atthe center and one half of the tubing of each frame may be used as thehydraulic pressure supply line and the other half may be used as thereturn line, and short tubing may be connected between the frame tubingand various pressure and return passages |38 and |39 of the cylinderheads |9I.

In the pressure passage |92 is a valve |94 that is adapted to open andclose the passage |92 by the longitudinal movement thereof. The valve|94 is movable or urged to move to the closed position by a spring |95that is under compression between the valve |94 and the rear wall of thepassage |92. The stem |94a slidably passes through the side of thecylinder head |9| and becomes the core of a solenoid coil |96 which isrigidly mounted on the side wall of the cylinder head 9|. The returnvalve |91 and associated parts are identical to those just described forthe pressure valve, the solenoid coil for the return valve beingdesignated at |98. Each coil |96 and |98 is operable from a respectivepush button in its electric circuit. The push buttons being carriedpreferably in groups such as indicated at X and Y as will readily beunderstood, and the cylinders and their piston rods will perform thesame as previously described for the manually operated foot pedal valveoperating pedals.

Such modifications of my invention may be employed as lie within thescope of the appended claim without departing from the spirit andintention of the invention. Now having fully shown and described myinvention, what I claim is:

In a chiropractic adjusting table of the kind described; said tablehaving in combination, a primary base frame and a rockable U-shapedsecondary frame having substantially Z-legs that are parallel and are inregistry with each other, said primary frame having verticallypositioned supports stationed thereon at the foot end of the frame andbeing positioned between the said supports and the upper legs of the Zformations of the secondary frame being pivotally mounted on theuppermost portion of the said supports, a slide support frame, saidslide support frame being slidably carried on the lower legs of the Zformation of the secondary frame, said slide 15 frame beingsubstantially the same height as the said Z formation, individual head,chest, abdominal, hip, leg and foot cushions, a foot platform, and aframe for each of said cushions, the foot end of the head cushionsupport frame and the head end of the chest and abdominal cushionsupport frames being pivotally mounted on the upper end of said supportson the said slide frame, the hip and leg cushion support frame beingpivotally mounted at its foot end and being slidable longitudinally onthe said secondary frame, and means rigidly carried by the saidsecondary frame for the support of the foot support cushion, said footplatform being adjustably carried by the foot end of the said secondaryframe and at an angle obtuse to the general linear dimension of thesecondary frame, said foot platform being adjustable toward and awayfrom the said foot support cushion, and means for sliding and holdingthe said slide frames and hip and leg cushion support in adjustedpositions on the secondary frame.

THOMAS C. BUCKLEY.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS

